Gasket



FIG. 1 is a perspective view of a gasket showing our new design;

FIG. 2 is a top plan view of the design of FIG. 1;

FIG. 3 is a side elevational view of the design of FIG. 1 all sides appearing the same; and,

FIG. 4 is a bottom plan of the design of FIG. 1. 

The ornamental design for a gasket, as shown and described. 